The cost categories in a business sale
Selling a business involves more line items than the advisor's success fee alone. The main categories are advisory fees, legal fees, accounting and quality-of-earnings costs, and a smaller set of administrative expenses.
- 01
M&A advisor fees
Retainer plus success fee. See our full Advisor Fees guide for typical structures.
- 02
Legal fees
Drafting and negotiating the purchase agreement, disclosure schedules, and closing documents, typically billed hourly by M&A transaction counsel.
- 03
Accounting & quality of earnings
Preparing clean financials and, increasingly, commissioning a sell-side QoE report. See our Quality of Earnings guide.
- 04
Administrative & miscellaneous
Data room setup, filing fees where applicable, and other process costs, usually the smallest category by far.
A real disclosed cost breakdown
Public companies have to disclose exact transaction costs to shareholders, which makes for one of the only places these categories show up with real numbers attached rather than rules of thumb.
In a 2026 merger proxy, Select Medical Holdings disclosed total estimated transaction fees and expenses of approximately $21.0 million: $12.49 million in financial advisory fees, $7.5 million in legal fees, and the remainder in SEC filing, printing, and miscellaneous costs. Goldman Sachs served as financial advisor to the Special Committee. View the filing on SEC EDGAR ↗
This is a large public-company transaction, so the absolute dollar figures aren't representative of a lower-middle-market deal, but the category breakdown (advisory fees as the largest line, legal fees second, everything else a distant third) holds at almost any deal size.
How costs scale with deal size
Total transaction cost as a percentage of deal value shrinks as deal size grows: legal and accounting work doesn't scale linearly with price the way a percentage-based success fee does. A $10M deal and a $100M deal don't require ten times the legal drafting effort, so smaller deals see a higher effective cost percentage even though the dollar amounts are much lower.
What you can actually reduce
- →Clean, well-organized financials reduce legal and accounting hours spent resolving discrepancies during diligence.
- →A realistic valuation range going in avoids a drawn-out renegotiation that runs up legal fees on both sides.
- →Negotiating retainer credit and expense caps with your advisor upfront, covered in our Advisor Fees guide.